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MINOR: promex: Add info in the promex context to dump extra counters

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The context of the promex applet was extended to support the dump of extra
counters. These counters are not dumped yet, but info to interrupt and
restart the dump are required. The stats module and the relative field
number for this module can now be saved.

In addition support for "extra-counters" parameter was added on the
query-string to dump these counters. Otherwise, no extra-counters are
dumped.
This commit is contained in:
Christopher Faulet 2024-01-29 16:40:41 +01:00
parent 2ea9a88928
commit 62922afab7
1 changed files with 20 additions and 0 deletions
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20
addons/promex/service-prometheus.c
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@ -75,6 +75,7 @@ enum {
#define PROMEX_FL_SCOPE_LI 0x00000800
#define PROMEX_FL_SCOPE_STICKTABLE 0x00001000
#define PROMEX_FL_NO_MAINT_SRV 0x00002000
#define PROMEX_FL_EXTRA_COUNTERS 0x00004000
#define PROMEX_FL_SCOPE_ALL (PROMEX_FL_SCOPE_GLOBAL | PROMEX_FL_SCOPE_FRONT | \
PROMEX_FL_SCOPE_LI | PROMEX_FL_SCOPE_BACK | \
@ -86,8 +87,10 @@ struct promex_ctx {
struct stktable *st; /* current table */
struct listener *li; /* current listener */
struct server *sv; /* current server */
struct stats_module *mod; /* current module for extra counters */
unsigned int flags; /* PROMEX_FL_* */
unsigned field_num; /* current field number (ST_F_* etc) */
unsigned mod_field_num; /* first field number of the current module (ST_F_* etc) */
int obj_state; /* current state among PROMEX_{FRONT|BACK|SRV|LI}_STATE_* */
};
@ -1300,10 +1303,12 @@ static int promex_dump_metrics(struct appctx *appctx, struct stconn *sc, struct
ctx->st = NULL;
ctx->li = NULL;
ctx->sv = NULL;
ctx->mod = NULL;
ctx->flags &= ~PROMEX_FL_INFO_METRIC;
ctx->flags |= (PROMEX_FL_METRIC_HDR|PROMEX_FL_FRONT_METRIC);
ctx->obj_state = 0;
ctx->field_num = ST_F_PXNAME;
ctx->mod_field_num = 0;
appctx->st1 = PROMEX_DUMPER_FRONT;
__fallthrough;
@ -1321,10 +1326,12 @@ static int promex_dump_metrics(struct appctx *appctx, struct stconn *sc, struct
ctx->st = NULL;
ctx->li = LIST_NEXT(&proxies_list->conf.listeners, struct listener *, by_fe);
ctx->sv = NULL;
ctx->mod = NULL;
ctx->flags &= ~PROMEX_FL_FRONT_METRIC;
ctx->flags |= (PROMEX_FL_METRIC_HDR|PROMEX_FL_LI_METRIC);
ctx->obj_state = 0;
ctx->field_num = ST_F_PXNAME;
ctx->mod_field_num = 0;
appctx->st1 = PROMEX_DUMPER_LI;
__fallthrough;
@ -1342,10 +1349,12 @@ static int promex_dump_metrics(struct appctx *appctx, struct stconn *sc, struct
ctx->st = NULL;
ctx->li = NULL;
ctx->sv = NULL;
ctx->mod = NULL;
ctx->flags &= ~PROMEX_FL_LI_METRIC;
ctx->flags |= (PROMEX_FL_METRIC_HDR|PROMEX_FL_BACK_METRIC);
ctx->obj_state = 0;
ctx->field_num = ST_F_PXNAME;
ctx->mod_field_num = 0;
appctx->st1 = PROMEX_DUMPER_BACK;
__fallthrough;
@ -1363,10 +1372,12 @@ static int promex_dump_metrics(struct appctx *appctx, struct stconn *sc, struct
ctx->st = NULL;
ctx->li = NULL;
ctx->sv = ctx->px ? ctx->px->srv : NULL;
ctx->mod = NULL;
ctx->flags &= ~PROMEX_FL_BACK_METRIC;
ctx->flags |= (PROMEX_FL_METRIC_HDR|PROMEX_FL_SRV_METRIC);
ctx->obj_state = 0;
ctx->field_num = ST_F_PXNAME;
ctx->mod_field_num = 0;
appctx->st1 = PROMEX_DUMPER_SRV;
__fallthrough;
@ -1384,9 +1395,11 @@ static int promex_dump_metrics(struct appctx *appctx, struct stconn *sc, struct
ctx->st = stktables_list;
ctx->li = NULL;
ctx->sv = NULL;
ctx->mod = NULL;
ctx->flags &= ~(PROMEX_FL_METRIC_HDR|PROMEX_FL_SRV_METRIC);
ctx->flags |= (PROMEX_FL_METRIC_HDR|PROMEX_FL_STICKTABLE_METRIC);
ctx->field_num = STICKTABLE_SIZE;
ctx->mod_field_num = 0;
appctx->st1 = PROMEX_DUMPER_STICKTABLE;
__fallthrough;
@ -1404,8 +1417,10 @@ static int promex_dump_metrics(struct appctx *appctx, struct stconn *sc, struct
ctx->st = NULL;
ctx->li = NULL;
ctx->sv = NULL;
ctx->mod = NULL;
ctx->flags &= ~(PROMEX_FL_METRIC_HDR|PROMEX_FL_STICKTABLE_METRIC);
ctx->field_num = 0;
ctx->mod_field_num = 0;
appctx->st1 = PROMEX_DUMPER_DONE;
__fallthrough;
@ -1425,8 +1440,10 @@ static int promex_dump_metrics(struct appctx *appctx, struct stconn *sc, struct
ctx->st = NULL;
ctx->li = NULL;
ctx->sv = NULL;
ctx->mod = NULL;
ctx->flags = 0;
ctx->field_num = 0;
ctx->mod_field_num = 0;
appctx->st1 = PROMEX_DUMPER_DONE;
return -1;
}
@ -1523,6 +1540,9 @@ static int promex_parse_uri(struct appctx *appctx, struct stconn *sc)
else
goto error;
}
else if (strcmp(key, "extra-counters") == 0) {
ctx->flags |= PROMEX_FL_EXTRA_COUNTERS;
}
else if (strcmp(key, "no-maint") == 0)
ctx->flags |= PROMEX_FL_NO_MAINT_SRV;
}